TMatrixDDiag

class description - source file - inheritance tree

class TMatrixDDiag : public TObject

    private:

      TMatrixDDiag TMatrixDDiag()

    public:

         TMatrixDDiag TMatrixDDiag(const TMatrixD& matrix)
         TMatrixDDiag TMatrixDDiag(const TMatrixDDiag&)
                 void ~TMatrixDDiag()
       static TClass* Class()
                Int_t GetNdiags() const
      virtual TClass* IsA() const
      const Double_t& operator()(Int_t i) const
            Double_t& operator()(Int_t i)
                 void operator*=(Double_t val)
                 void operator+=(Double_t val)
                 void operator=(Double_t val)
                 void operator=(const TMatrixDDiag& d)
                 void operator=(const TVectorD& vec)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    private:

      const TMatrixD* fMatrix  ! the matrix I am the diagonal of
                Int_t fInc     if ptr=@a[i,i], then ptr+inc = @a[i+1,i+1]
                Int_t fNdiag   number of diag elems, min(nrows,ncols)
            Double_t* fPtr     ! pointer to the a[0,0]

Class Description

                                                                      
 Matrix utility classes.                                              
                                                                      
 This file defines utility classes for the Linear Algebra Package.    
 The following classes are defined here:                              
   TMatrixDAction                                                     
   TMatrixDPosAction                                                  
   TLazyMatrixD                                                       
   THaarMatrixD                                                       
   TMatrixDRow                                                        
   TMatrixDColumn                                                     
   TMatrixDDiag                                                       
   TMatrixDPivoting
void Streamer(TBuffer &R__b) 
 Stream an object of class TMatrixDDiag.
TMatrixDDiag(const TMatrixD &matrix) : fMatrix(&matrix), fInc(matrix.fNrows+1), fNdiag(TMath::Min(matrix.fNrows, matrix.fNcols))



Inline Functions

           TMatrixDDiag TMatrixDDiag(const TMatrixD& matrix)
                   void operator=(Double_t val)
                   void operator+=(Double_t val)
                   void operator*=(Double_t val)
                   void operator=(const TMatrixDDiag& d)
                   void operator=(const TVectorD& vec)
        const Double_t& operator()(Int_t i) const
              Double_t& operator()(Int_t i)
                  Int_t GetNdiags() const
                TClass* Class()
                TClass* IsA() const
                   void ShowMembers(TMemberInspector& insp, char* parent)
                   void StreamerNVirtual(TBuffer& b)
           TMatrixDDiag TMatrixDDiag(const TMatrixDDiag&)
                   void ~TMatrixDDiag()

Author: Fons Rademakers 03/11/97
Last update: root/matrix:$Name: $:$Id: TMatrixDUtils.cxx,v 1.8 2002/09/13 08:52:13 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

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